diff --git a/DEVELOPMENT.md b/DEVELOPMENT.md
new file mode 100644
index 0000000..e89d8d0
--- /dev/null
+++ b/DEVELOPMENT.md
@@ -0,0 +1,76 @@
+# `cordova-plugin-meteor-webapp` Development
+
+## Running iOS Tests
+
+1) Start with a cloned copy of the `cordova-plugin-meteor-webapp` repo:
+
+```
+cd ~
+git clone https://github.com/meteor/cordova-plugin-meteor-webapp.git
+```
+
+2) Make sure the `GCDWebServer` submodule is pulled in:
+
+```
+cd cordova-plugin-meteor-webapp
+git submodule update --init --recursive
+```
+
+3) Create a new test Cordova app:
+
+```
+cd ~
+cordova create test-app
+```
+
+4) Add the `cordova-plugin-meteor-webapp`, `cordova-plugin-meteor-webapp-tests`, and `cordova-plugin-test-framework` plugins:
+
+```
+cd test-app
+cordova plugin add https://github.com/apache/cordova-plugin-test-framework.git
+cordova plugin add ../cordova-plugin-meteor-webapp/
+cordova plugin add ../cordova-plugin-meteor-webapp/tests
+```
+
+5) Add the `ios` platform:
+
+```
+cordova platform add ios
+```
+
+6) Add a [`build.json`](https://cordova.apache.org/docs/en/latest/guide/platforms/ios/#using-buildjson) file to the root of your `test-app`, that includes your Apple Developer Team ID:
+
+```json
+{
+  "ios": {
+    "debug": {
+      "developmentTeam": "ABC123DEF456"
+    },
+    "release": {
+      "developmentTeam": "ABC123DEF456",
+      "codeSignIdentity": "iPhone Developer",
+      "packageType": "ad-hoc"
+    }
+  }
+}
+```
+
+7) Update the `test-app`'s `config.xml` to point to the test runner:
+
+Change
+
+```xml
+<content src="index.html" />
+```
+
+to
+
+```xml
+<content src="cdvtests/index.html" />
+```
+
+8) Run the tests on a device or using the iOS emulator:
+
+```
+cordova emulate ios
+```
diff --git a/tests/package.json b/tests/package.json
new file mode 100644
index 0000000..f227b7f
--- /dev/null
+++ b/tests/package.json
@@ -0,0 +1,24 @@
+{
+  "name": "cordova-plugin-meteor-webapptests",
+  "version": "1.3.1",
+  "cordova": {
+    "id": "cordova-plugin-meteor-webapp-tests",
+    "platforms": [
+      "android",
+      "ios"
+    ]
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/meteor/cordova-plugin-meteor-webapp"
+  },
+  "keywords": [
+    "cordova",
+    "meteor",
+    "ecosystem:cordova",
+    "cordova-android",
+    "cordova-ios"
+  ],
+  "author": "Meteor Development Group",
+  "license": "MIT"
+}
diff --git a/tests/plugin.xml b/tests/plugin.xml
index e427429..52765cc 100644
--- a/tests/plugin.xml
+++ b/tests/plugin.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <plugin xmlns="http://apache.org/cordova/ns/plugins/1.0"
   id="cordova-plugin-meteor-webapp-tests"
-  version="1.3.0">
+  version="1.3.1">
   <name>Meteor Webapp Tests</name>
   <author>Meteor Development Group</author>
   <license>MIT</license>
@@ -31,7 +31,7 @@
   </config-file>
 
   <platform name="ios">
-    <hook type="after_plugin_install" src="../scripts/iosAddBridgingHeader.js" />
+    <hook type="after_plugin_install" src="../cordova-plugin-meteor-webapp/scripts/iosAddBridgingHeader.js" />
 
     <config-file target="config.xml" parent="/*">
       <feature name="WebAppMockRemoteServer">
diff --git a/tests/src/ios/WebAppMockRemoteServer.swift b/tests/src/ios/WebAppMockRemoteServer.swift
index cb2fde6..0fb9405 100644
--- a/tests/src/ios/WebAppMockRemoteServer.swift
+++ b/tests/src/ios/WebAppMockRemoteServer.swift
@@ -1,11 +1,11 @@
 extension Data {
   func SHA1() -> String {
     var digest = [UInt8](repeating: 0, count: Int(CC_SHA1_DIGEST_LENGTH))
-    
+
     withUnsafeBytes { (bytes) -> Void in
       CC_SHA1(bytes, CC_LONG(count), &digest)
     }
-    
+
     var hexString = ""
     for index in 0..<digest.count {
       hexString += String(format: "%02x", digest[index])
@@ -73,25 +73,25 @@ class WebAppMockRemoteServer: CDVPlugin, GCDWebServerTestingDelegate {
 
     server.addHandler(match: {(requestMethod, requestURL, requestHeaders, URLPath, URLQuery) -> GCDWebServerRequest! in
       if requestMethod != "GET" { return nil }
-      if !(URLPath?.hasPrefix(basePath))! { return nil }
+      if !(URLPath.hasPrefix(basePath)) { return nil }
 
       let request = GCDWebServerRequest(method: requestMethod, url: requestURL, headers: requestHeaders, path: URLPath, query: URLQuery)
       return request
       }) { (request) -> GCDWebServerResponse! in
-        let URLPath = request?.path.substring(from: basePath.endIndex)
-        let fileURL = self.versionDirectoryURL.appendingPathComponent(URLPath!)
+        let URLPath = request.path.substring(from: basePath.endIndex)
+        let fileURL = self.versionDirectoryURL.appendingPathComponent(URLPath)
 
         var response: GCDWebServerResponse
 
         var isDirectory = ObjCBool(false)
         if fileManager.fileExists(atPath: fileURL.path, isDirectory: &isDirectory)
             && !isDirectory.boolValue {
-          response = GCDWebServerFileResponse(file: fileURL.path)
+          response = GCDWebServerFileResponse(file: fileURL.path)!
           let fileHash = (try! Data(contentsOf: fileURL)).SHA1()
           response.eTag = "\"\(fileHash)\""
-        } else if request?.query["meteor_dont_serve_index"] == nil {
+        } else if request.query!["meteor_dont_serve_index"] == nil {
           let indexFileURL = self.versionDirectoryURL.appendingPathComponent("index.html")
-          response = GCDWebServerFileResponse(file: indexFileURL.path)
+          response = GCDWebServerFileResponse(file: indexFileURL.path)!
         } else {
           response = GCDWebServerResponse(statusCode: GCDWebServerClientErrorHTTPStatusCode.httpStatusCode_NotFound.rawValue)
         }